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Finding the Fourth Proportional to 140,809.37, 211,036.64 and 100,619.01

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Solution

The fourth proportional to 140,809.37, 211,036.64 and 100,619.01 is: 150,801.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,809.37 : 211,036.64 = 100,619.01 : x
  2. Step 2: Convert to fraction form
    140,809.37/211,036.64 = 100,619.01/x
  3. Step 3: Cross multiply
    140,809.37x = 211,036.64 × 100,619.01
  4. Step 4: Simplify right side
    140,809.37x = 21,234,297,287.43
  5. Step 5: Solve for x
    x = 21,234,297,287.43/140,809.37
  6. Step 6: Final answer
    x = 150,801.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.